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agent: For SSH key, don't put NUL-byte at the end.

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* agent/command-ssh.c (ssh_key_to_protected_buffer): Update
the length by the second call of gcry_sexp_sprint.

--

GnuPG-bug-id: 4502
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2019-05-21 15:50:28 +09:00 committed by Werner Koch
parent 5c46c5f745
commit 6e39541f4f
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
1 changed files with 2 additions and 2 deletions
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4
agent/command-ssh.c
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@ -3003,8 +3003,8 @@ ssh_key_to_protected_buffer (gcry_sexp_t key, const char *passphrase,
goto out;
}
gcry_sexp_sprint (key, GCRYSEXP_FMT_CANON, buffer_new, buffer_new_n);
/* FIXME: guarantee? */
buffer_new_n = gcry_sexp_sprint (key, GCRYSEXP_FMT_CANON,
buffer_new, buffer_new_n);
if (*passphrase)
err = agent_protect (buffer_new, passphrase, buffer, buffer_n, 0, -1);